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Thread: Commercial receiver extension and 9mm spacer

  1. #1
    Join Date
    Aug 2006
    Feedback Score
    35 (100%)

    Commercial receiver extension and 9mm spacer

    I have one of the HK commercial receiver extensions and was considering using it on a 9mm build.

    My question before I install it is will I run into any issues with the slanted end on it and using the 9mm Colt spacer? Or is this a non issue?

    If it is a potential problem then getting a milspec tube with it's flatter end is no problem.

    Sig Sauer LE Armorer
    Glock LE Armorer
    Colt AR15/M16 Armorer
    T.O.S.S. (Tactical Officer Survival School) inst. Tom Long
    Vicker's Tactical Pistol 1 & 2 Carbine 1 Advanced carbine Inst. Larry Vickers
    Intermediate pistol Inst. Ken Hackathorn
    Combat Speed Inst. Dave Harrington
    Performance Pistol Inst. Frank Proctor

  2. #2
    Join Date
    May 2015
    Feedback Score
    No difference on the inside. Same dimensions.
    I’ve swapped buffers & springs between comm. & mil spec buffer tubes and never noticed a difference.


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